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Updated: Aug 4, 2026
06:01
A Thrombotic Stroke Model Based On Transient Cerebral Hypoxia-ischemia
Published on: August 18, 2015
脳卒中の発生率は季節や気温に関係しているのでしょうか? オックスフォードシャー・コミュニティ・ストローク・プロジェクト
P M Rothwell1, S J Wroe, J Slattery
1Department of Clinical Neurosciences, Western General Hospital, Edinburgh, UK.
Lancet (London, England)
|April 6, 1996
まとめ
この研究では,脳卒中発生率の季節的な有意な変動は認められませんでした. しかし,一次性脳内出血のリスクは寒い天候で増加し,季節ではなく温度が脳卒中リスクに影響することを示唆しています.
科学分野:
- 神経学 神経学とは
- エピデミオロジー エピデミオロジー
- 環境衛生 環境衛生 環境衛生
背景:
- 以前の研究では,冬の冬に,不全性脳卒中の発生率が増加することを示唆しています.
- 脳卒中の季節的変動に対する病理生理学的説明が提案されています.
- この研究では,季節と環境温度との関係で脳卒中の発生率を調査しています.
研究 の 目的:
- 季節によって脳卒中の発生率が大きく変化するかどうかを判断する.
- 周囲の温度とさまざまな脳卒中の発生率の関係を調べる.
主な方法:
- 約10万5千人の初めて脳卒中のコミュニティベースのコホート研究.
- 4年間にわたって収集されたデータで,675件の脳卒中が記録されています.
- 脳卒中発症月度の分析は,脳卒中型によって層格化:脳梗塞,主脳内出血,下大腸出血.
主要な成果:
- 総合的な脳卒中発生率における統計的に有意な季節的変動は観察されなかった.
- 主要な脳内出血の発生率の顕著な増加は,低気温の環境の期間中に発生しました.
- 温度と不全性脳卒中または下大腸出血の発生率との間に有意な相関は見つかりませんでした.
結論:
- 一般的に報告されている冬の過剰な不血性脳卒中は,人工物かもしれない.
- 潜在的なバイアスには,病院での研究における紹介パターンと冬の死亡率の増加が含まれます.
- 温度,特に低温は,主性脳内出血のような特定の脳卒中の発生率に影響を与える可能性があります.
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